Messages in this thread | | | Date | Thu, 6 Apr 2017 18:58:19 -0700 | From | Jessica Yu <> | Subject | Re: [PATCH v5 1/2] module: verify address is read-only |
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+++ Eddie Kovsky [05/04/17 21:35 -0600]: >Implement a mechanism to check if a module's address is in >the rodata or ro_after_init sections. It mimics the existing functions >that test if an address is inside a module's text section. > >Functions that take a module as an argument will be able to verify that the >module address is in a read-only section. The idea is to prevent structures >(including modules) that are not read-only from being passed to functions. > >This implements the first half of a suggestion made by Kees Cook for >the Kernel Self Protection Project: > > - provide mechanism to check for ro_after_init memory areas, and > reject structures not marked ro_after_init in vmbus_register() > >Suggested-by: Kees Cook <keescook@chromium.org> >Signed-off-by: Eddie Kovsky <ewk@edkovsky.org>
Acked-by: Jessica Yu <jeyu@redhat.com>
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